Specifications Comparison: 2021 Chevrolet Suburban vs 2003 Chevrolet Suburban

Engine Horsepower & Torque

Trim	Eng.	Drive train	HP	Torque (ft-lbs)
Fleet	5.3L V8	None	355	383
Fleet	I6	None	277	460
Fleet	5.3L V8	None	355	383
Fleet	I6	None	277	460
High Country	6.2L V8	RWD	420	460
High Country	3.0L I6	RWD	277	460
High Country	6.2L V8	4WD	420	460
High Country	3.0L I6	4WD	277	460
LS	5.3L V8	RWD	355	383
LS	3.0L I6	RWD	277	460
LS	5.3L V8	4WD	355	383
LS	3.0L I6	4WD	277	460
LT	5.3L V8	RWD	355	383
LT	3.0L I6	RWD	277	460
LT	5.3L V8	4WD	355	383
LT	3.0L I6	4WD	277	460
Premier	5.3L V8	RWD	355	383
Premier	3.0L I6	RWD	277	460
Premier	5.3L V8	4WD	355	383
Premier	3.0L I6	4WD	277	460
RST	5.3L V8	RWD	355	383
RST	3.0L I6	RWD	277	460
RST	5.3L V8	4WD	355	383
RST	3.0L I6	4WD	277	460
Z71	5.3L V8	4WD	355	383

Trim	Eng.	Drive train	HP	Torque (ft-lbs)
C1500 LS	V8	RWD	285	325
C1500 LT	V8	RWD	285	325
C2500 LS	V8	RWD	320	360
C2500 LT	V8	RWD	320	360
K1500 LS	V8	4WD	285	325
K1500 LT	V8	4WD	285	325
K2500 LS	V8	4WD	320	360
K2500 LT	V8	4WD	320	360

Trim	Eng.	Drive train	HP Per Liter	HP Per Inch³
Fleet	5.3L V8	None	66	1.1
Fleet	5.3L V8	None	66	1.1
High Country	6.2L V8	RWD	67	1.11
High Country	3.0L I6	RWD	92	1.51
High Country	6.2L V8	4WD	67	1.11
High Country	3.0L I6	4WD	92	1.51
LS	5.3L V8	RWD	66	1.1
LS	3.0L I6	RWD	92	1.51
LS	5.3L V8	4WD	66	1.1
LS	3.0L I6	4WD	92	1.51
LT	5.3L V8	RWD	66	1.1
LT	3.0L I6	RWD	92	1.51
LT	5.3L V8	4WD	66	1.1
LT	3.0L I6	4WD	92	1.51
Premier	5.3L V8	RWD	66	1.1
Premier	3.0L I6	RWD	92	1.51
Premier	5.3L V8	4WD	66	1.1
Premier	3.0L I6	4WD	92	1.51
RST	5.3L V8	RWD	66	1.1
RST	3.0L I6	RWD	92	1.51
RST	5.3L V8	4WD	66	1.1
RST	3.0L I6	4WD	92	1.51
Z71	5.3L V8	4WD	66	1.1